Joseph o neil



(No Model.)

J. ONEIL. PUMP.

Patented oct. 5, 1897.

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llwrrnn STATES' Artnr JOSEPH ONEIL, OF TAYLORSTOVN, PENNSYLVANIA.

SPEOFICATION forming part of Letters Patent N o. 591,004, dated October`5 1897.

Application filed May 3l, 1895. 4Serial No. 551,254. (No model l T0 @ZZwhom '/It ntrtz/ concern.-

Be it known that I, JOSEPH ONEIL, residing at Taylorstown, in the countyot' Washingron and State of Pennsylvania, have invented a new and usefulImprovementin Pumps, of which the following is a specification.

My invention is an improvement in pumps, especially deep-well pumps, andseeks, among other objects, to provide a novel efficient form of pump inwhich the pumping device can be operated by means of a wire cable orother flexible connection, thus cheapening the construction of the pumpand rendering the removal of the pumping devices easy and capable ofbeing effected in much less time than is possible in the use of theordinary jointed pumping-rod.

The invention consists in certain novel constructions, combinations,andv arrangements of parts, as will hereinafter be described, andpointed out in the claims.

In the drawings, Figure l is a vertical longitudinal section of a partof a pump, the out- A let-valve being shown in the lposition it assumesin the ascending motion of the head. Figa' is a somewhat similar viewwith the outlet-valve in the position it assumes on the downstroke ofthe head. Fig. 3 is a similar view showing the outlet-valve as unseatedby the down pressure of the fluid when the pumping devices are removed.Fig. 4 is a crosssection on about line 4 4 of Fig. 1, and Figs. 5 and 6are detail views.

In the embodiment of my invention shown I employ an upper working barrelA and a lower working barrel B, of different areas, the lower workingbarrel B being considerably less in area than the upper working barrelA, and these barrels are connected at their vadjacent ends, preferably,by meansof a jointpiece C, constituting a connection or support intowhich the barrels are threaded, the bore C of said j oint-piece beingflared upward from the upper end of the lower barrel B, thus forming aconical guide which aids in directing the lower pumping head or valveinto its barrel B in inserting the pumping devices, as will be readilyunderstood.

At the lower end of the upper working barrel A, I provide avalve-controlled outlet I), the purpose of which will be more fullydescribed hereinafter, and by preference I form this outlet D andsupport its controlling de- .vices in the connection-piece C, whichmani- -festly may be made integral with either or both of the workingbarrels, if desired, but is preferably made separate, as shown. Thepurpose of this valve-controlled outlet is to provide for forming a semior partial vacuum below the draft-head which operates in the workingbarrel A when said head is lifted from its lowermost position and alsoto automatically close by the pressure of fluid above when the pumpingheads are entirely removed, and so avoid the disturbing of the well bythe discharge thereinto of the oil within the tube. The opening CZ,which leads from the interior of the barrel, communicates with a chamberd', in which the valve E opera-tes. This valve E is double-ended, havingone valve portion or end E moving upward to close the channel d, and avalve portion or point E2, which moves downward and closes `thechannelf, leading outinto the well. This channelf is preferably formedin the plug F, which closes the lower end of the chamber d', and thevalve vibrates between the channels vCZ and f, being set to close eitherone or the other or held intermediate its two seats, as the operationmay require. This valve is preferably actuated by a spring G, and tofacilitate the engagement of the spring with the valve and to alsoaccurately guide such valve I provide it with lateral and depending armsE3, which fit down over and along the tubularrupper portion F' of theplug F and form an u pper bearing for the spring G, which spring bearsbetween the lower ends of the arms E3 and a shoulder F2, formed on theplug. This spring, it will be seen, operates to normally force the valveupward to close the channel d and thus close the outlet from thepump-barrel- The spring G is so adjusted in tension that it willpartially' yield to permit the channel d to open without such valvemoving down to close the channel f by the pressure resulting from thedownward movementof Ihepumpingdevices, as will more fullyappearhereinafter. At the same time this tension is such that when thepumping devices are entirely removed from the tubing the column of oilor water in such tubing above the outlet-controllin g valve will exertsuch force on the latter as to close the channel f, and so prevent thefluid within the tubing from passing into and disturbing the well.

The upper or draft head Il' and the lower .ssA

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pumping head or valve I are adapted, rcspectively, to operate in thebarrels A and B, and are connected by a tube J, the lower head I beingprovided with a suitable valve K, and a suitable standing valve L beingprovided at the lower end ot` the barrel B. These heads are suitablypacked and the upper head has, above its packing,outlets 7L. preferablyformed through flattened or reduced portions of said head, as shown.This head is connected with the wire cable or other suitable operatingdevices, being to such end provided with suitable means to facilitatesuch connection.

In operation as the pu mping-heads descend it is obvious that the oil inthe lower part of the barrel A below the d raft-head H can not all beforced into the working barrel B because of the difference in areabetween said barrels A and B. Consequently a portion of such liquid willpass out through channel d, the valve E opening to permit such passageand yet not beingforced to such position as to close the channelf. Nowon the return stroke it will be seen that as the draft-head rises thespring G will set the valve E to close the channel d, so that as thesaid draft-head continues to rise there will be formed below it a semior partial vacuum which will act to draw said head downward and so aidin returning the pumping-heads to their lowermost position, drawing thelifting-cable with them, as will be readily understood. If at any timethe pumping-heads be drawn entirely out of the well, the column of tiuidin the tubing above the outlet will act with such force as to seat thevalve E against the pressure of spring G in the channel f, and so closethe outlet and preventI the injury to the well from the outfiow, as willbe readily understood.

I do not intend herein to claim the combination of a working barrel, apiston working therein, an auxiliary pump-barrel, a draftpiston workingtherein, a valve-rod connecting said pistons, and a valve-vented chamberimmediately below the draft-piston for the purpose of relieving theunder side of said piston from pressure on the downward movement of thepump, the same forming the subject-matter, inter alto, of anotherapplication tiled in the Patent Oflice by me February l7, 1897, SerialNo. 623,793.

It will be understood that the pumpingheads and the connected cable arereturned or moved downward by the downward pressure of [i uid above thedraft-head, the weight and pressure of such Huid pressing the draftheaddown quickly and permitting a rapid operation of the pum p.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

l. In a pump substantially as described the combination of the upperbarrel, the lower barrel of less diameter than the upper barrel, theheads fitting in said barrels and connected whereby they move together,the double valve below the head operating in the upper barrel and twoopposite seats for said valve substantially as set forth.

2. A pump having adraft-head a barrel in which said head iits andoperates and an outlet below said head having two opposite seats onetoward the head and the other out toward the well and a double valveoperating between said seats, substantially as set forth.

3. An improved pump, substantially as described, comprising the upperbarrel the lower barrel of less area than the upper barrel, an outletbeing provided between said barrels and a valve controlling1 saidoutlet, substantially as set forth.

4. In a pump substantially as described the combination with the valvehaving opposite valve portions the support for said valve having` portsfor said opposite portions and a spring seating said valve on one of itsports and adapted to permit its movement under excessive pressure toclose the other port, substantially as set forth.

5. In a pump substantially as described, the combination of the upperand lower barrels of different areas, the connected heads fitted to andoperatin g in said barrels an outlet being provided between said barrelsand a valve cont-rolling said outlet, substantially as set forth.

6. In a pump, substantially as described, the combination with theconnection or support having a valve-seat, the plug also having avalve-seat opposite that of the connection or support, the valve havingopposite portions fitting said valve-seats and the spring for actuatingsaid valve, substantially as set forth.

7. The combination of the connection or support having a valve-chamberthe plug closing one end of said chamber and having a tubular portion atits inner end, the valve having the opposite valve portions and providedwith lateral depending arms fitting alongside the tubular portions ofthe plug and t-he spring embracing said portion and engaging the arms ofthe valve substantially as set forth.

t4. The pump having the upper and lower working barrels and providedbetween the same with an outlet having opposite valveseats and anintermediate valve-chamber the draft and pumping heads operating in saidupper and lower barrels and the double-ended valve operating in thechamber and between the opposite seats and a spring normally closingsaid valve against the seat next the barrel and permitting said valve tomove partly toward the opposite seat under some pressure and entirelyagainst said seat under greater pressure, all substantially as and forthe purposes set forth.

. JOSEPH ONEIL.

Vitn esses:

JNO. C. BANE, C. C. CHAMBERLIN.

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